Loose-leaf binder



A 1,640,646 Aug' 3o 1927 H. E. D. coGERY E'r AL LOOSE LEAF BINDER Filed Aug. 28, 1926 2 Sheets-Sheet 2 Patented Aug. 30, 1927.

UNITED STATES i raarste PATENT oFFicr.. y

BENOIT GEORGES BERTRAND,

LOOSE-LEAF BINDER.

Application filed Augustas, 192e, serial No. 122,154, and nl Belgium August 31,1925.

rEhis invention relates to binders of the kind generally called loose leaf binders, and has for its object so to construct devices of the class in question which are furnished with locking means for rocking the binder .with the leaves in position, that such locking means while being equally effective to the means usually employed are more simple in construction and consequently more economical.

The binders .of the kind to be considered are provided with two strips or elongated plates, between which the edges of the loose leaves to be bound are held fast. The two strips are held relatively to o-ne another, by turning over two specially constructed fastening devices upon one of the strips, such devices being connected to the other strip. in the usual constructions, the fastening devices consist of two rods or pins, each formed Y in two portions with the upper portion hinged to the lower. These hinged pins are passed through perforations or'the like in the upper strip and then turned down over such strip, and means are added for retaining the upper hinged portion thus in turned down position. v v

The present invention refers essentially to the improved means for locking or holding in position the ends of the pins when thus turned down, the locking device being constituted by an element hinged to the extremity of the pin and adapted to engage with suitable corresponding devices at the extremity of the plate.

The invention also refers to certain constructional embodiments which will be more fully described hereafter.

In order that the invention may be clearly understood, it will now be explained with reference to the accompanying drawings, butV it is to be observed that the description and drawings are given merely by way of 'example.

Fig. l of these drawings shows inv perspec-V tive, a loose leaf binder constructed according to the invention. v

Fig. 2 shows in vertical longitudinal section, one of the endsof the said binder.

Fig. 3 shows in vertical section on 3-3, Fig. 2, certain details of the binder.

Fig. e shows'in plan the parts of the binder shown in Fig. 3.

Fig. 5 shows, to a larger scale, but in the same manner as Fig. 2, certain parts'of the binder illustrated in the right hand upper yportion 0I nig. 2.

As regards the details of the binder itself, with the exception of the special locking means to be combined therewith, these are of a character already known.

ln the construction illustrated they comprise two plates a or strips, parallel to one anotherl and interconnected by rods or pins,

which engage the edges of the movable sheets b to be bound. There are two series. of these pins', one of the series c comprises a pair of pins, adjustable as to height and extending from one plate to the other. The second lseries of pins comprises a pair, each of which is formed in two parts hinged together at cl. One of the parts e is fixed to the bottom plate orstrip, and the other part f is adapted when the two strips are fitted together and at the desired distance apart from one another, to be turned down and over longitudinally upon the outer surface of the upper plate, into a groove g provided therein for the purpose. This groove is open at the end, and when the hinged portion 7 has been turned down its extremity comes in alignment with the corresponding extremity of the upper plate. The said part e canhave its heioht .adjusted by constructing it like one of the members c.

Referring now to the locking system to be combined with the binder and constituting the essential feature of the invention, this is constituted by hinging to the extremity of the part f of each pin a small device It. This device may be constructed in various ways, but in the example shown it is formed from two stamped shells attached together'edge to edge and having two rivets a' passing therethrough. It is connected to the pin j! by resilient'means. The means in the example shown consists of wire hooks, which are attached to the rivets e' and pass out through recesses in the shells and into a hole at the extremity of the pin Y At the end of the groove g, two curved recess-es 7c are provided, which are clearly visliti) ible at Fig. 4L. Between them is formed a sort of tongue Z, fashioned from the metal of the upper plate a and having a slightly curved portion, seen vclearly at Fig. 5.

The whole device, including the stamped portions athe wire hooks j, the recesses and the tongue Z are so made and co-operate that when the pin f is turnedy down into the groove g and the device 7i turned down on its hinge, the Wires engage in the recesses 72,4 after separating to allow for the passage' of an enlargementon the tongue l. The Wires then come to thebottom of the recesses 7c, and the locking is complete, the device 7L in the complet-ely turned down position being also retained from turningl by the curving of the piece Z, of tongue-like formation.

As previously stated, the invention is not limited in any Way to the particular construction of the lockingdevice illustrated, all modifications being includ-ed falling within a vfair interpretation of the claims.

lVhat We claim and desire tov secure by Letters Patent of the United States of America is l, A loose leaf binder comprising a first vcover member, a second cover member, a pin connected to said first cover member and eX- tending into the second cover member7 pin pivotally connected to the first mentioned pin and overlying the second cover member, the second cover member having a tongue at the` edge thereof and located adjacent the free end of the pivoted pin, and a locking element embodying resilient means connected to the free end of the said pivoted pin, the said locking element being adapted to detacliably engage the said tongue.

2. A loose leaf binder comprising a first cover member, a second cover memberj aA pin connected to said rst cover member and extending into the second cover member, a pin pivotally connected'to the first memtioned pin and overlying the second cover member, the said cover Vmember liavinga tongue formed in the edge thereof, the said tongue having an enlarged head of taperg ing contour and a locking element connected to the free edge of the said pivoted pin by resilient Wire mea-ns, the said resilient Wire means being adapted to yield sufficiently to pass behind the enlarged head of the tongue.

3. A device according to claim 2 in which the said resilient Wire means are `pivota'lly engaged to tie free edge of the pivoted pin.

In testimony whereof We hereunto affixed our signatures.

essai restar assist costar. CLAUDE FRANols Belvoir crosses BERTRAND. 

